Any tips for fighting Hilla?

Hilla is probably one of the easiest bosses in the game. Watch out for damage reflect, like others have said you get a notification for everything she does. The towers that pull you are annoying at times, but other than that and damage reflect its a pretty simple fight. Even if you do die you respawn in a map where you can rebuff and start fighting again where you left off. Dont worry about losing exp either because you dont.